WID-SEC-W-2026-3240
Vulnerability from csaf_certbund - Published: 2026-09-08 22:00 - Updated: 2026-09-09 22:00Summary
Insyde UEFI Firmware und Cisco UCS (UEFI Shell Secure Boot): Schwachstelle ermöglicht Umgehen von Sicherheitsvorkehrungen
Severity
Mittel
Notes
Das BSI ist als Anbieter für die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch dafür verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgfältig im Einzelfall zu prüfen.
Produktbeschreibung: InsydeH2O UEFI BIOS ist eine proprietäre, lizenzierte UEFI-BIOS-Firmware, die Intel und AMD basierte Computer unterstützt.
Bei dem Cisco Unified Computing System (UCS) handelt es sich um eine Rechenzentrumsplattform, die Rechenleistung, Netzwerk, Storage-Zugriff und Virtualisierung in einem System zusammenführt.
Angriff: Ein Angreifer kann eine Schwachstelle in Insyde UEFI Firmware und Cisco Unified Computing System (UCS) ausnutzen, um den UEFI-Secure-Boot zu umgehen, die Pre-Boot-Umgebung zu manipulieren und beliebigen Code auszuführen.
Betroffene Betriebssysteme: - BIOS/Firmware
- CISCO Appliance
- Sonstiges
Affected products
Known affected
9 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
|
Insyde UEFI Firmware <05.3A.17
Insyde / UEFI Firmware
|
<05.3A.17 | ||
|
Insyde UEFI Firmware <05.2B.17
Insyde / UEFI Firmware
|
<05.2B.17 | ||
|
Cisco Unified Computing System (UCS) UEFI Shell implementation
Cisco / Unified Computing System (UCS)
|
cpe:/h:cisco:unified_computing_system:uefi_shell_implementation
|
UEFI Shell implementation | |
|
Insyde UEFI Firmware <05.48.17
Insyde / UEFI Firmware
|
<05.48.17 | ||
|
Insyde UEFI Firmware <05.63.17
Insyde / UEFI Firmware
|
<05.63.17 | ||
|
Insyde UEFI Firmware
Insyde / UEFI Firmware
|
cpe:/h:insyde:uefi:-
|
— | |
|
Insyde UEFI Firmware <05.56.17
Insyde / UEFI Firmware
|
<05.56.17 | ||
|
Insyde UEFI Firmware <05.72.17
Insyde / UEFI Firmware
|
<05.72.17 | ||
|
Dell Computer
Dell
|
cpe:/o:dell:dell_computer:-
|
— |
Affected products
Known affected
9 products, the same list as for
CVE-2026-20293
References
6 references
{
"document": {
"aggregate_severity": {
"text": "mittel"
},
"category": "csaf_base",
"csaf_version": "2.0",
"distribution": {
"tlp": {
"label": "WHITE",
"url": "https://www.first.org/tlp/"
}
},
"lang": "de-DE",
"notes": [
{
"category": "legal_disclaimer",
"text": "Das BSI ist als Anbieter f\u00fcr die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch daf\u00fcr verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgf\u00e4ltig im Einzelfall zu pr\u00fcfen."
},
{
"category": "description",
"text": "InsydeH2O UEFI BIOS ist eine propriet\u00e4re, lizenzierte UEFI-BIOS-Firmware, die Intel und AMD basierte Computer unterst\u00fctzt.\r\nBei dem Cisco Unified Computing System (UCS) handelt es sich um eine Rechenzentrumsplattform, die Rechenleistung, Netzwerk, Storage-Zugriff und Virtualisierung in einem System zusammenf\u00fchrt.",
"title": "Produktbeschreibung"
},
{
"category": "summary",
"text": "Ein Angreifer kann eine Schwachstelle in Insyde UEFI Firmware und Cisco Unified Computing System (UCS) ausnutzen, um den UEFI-Secure-Boot zu umgehen, die Pre-Boot-Umgebung zu manipulieren und beliebigen Code auszuf\u00fchren.",
"title": "Angriff"
},
{
"category": "general",
"text": "- BIOS/Firmware\n- CISCO Appliance\n- Sonstiges",
"title": "Betroffene Betriebssysteme"
}
],
"publisher": {
"category": "other",
"contact_details": "csaf-provider@cert-bund.de",
"name": "Bundesamt f\u00fcr Sicherheit in der Informationstechnik",
"namespace": "https://www.bsi.bund.de"
},
"references": [
{
"category": "self",
"summary": "WID-SEC-W-2026-3240 - CSAF Version",
"url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-3240.json"
},
{
"category": "self",
"summary": "WID-SEC-2026-3240 - Portal Version",
"url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-3240"
},
{
"category": "external",
"summary": "CERT/CC-VN:VU#718077 vom 2026-09-08",
"url": "https://www.kb.cert.org/vuls/id/718077"
},
{
"category": "external",
"summary": "Cisco Security Advisory cisco-sa-ucs-uefi-sb-bypass-eb6xC5GW vom 2026-09-08",
"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ucs-uefi-sb-bypass-eb6xC5GW"
},
{
"category": "external",
"summary": "Insyde Security Advisory INSYDE-SA-2026004 vom 2026-09-09",
"url": "https://www.insyde.com/security-pledge/sa-2026004/"
},
{
"category": "external",
"summary": "Dell Security Advisory DSA-2026-281 vom 2026-09-09",
"url": "https://www.dell.com/support/kbdoc/de-de/000501828/dsa-2026-281-security-update-for-dell-client-platform-for-an-insyde-bios-vulnerability"
}
],
"source_lang": "en-US",
"title": "Insyde UEFI Firmware und Cisco UCS (UEFI Shell Secure Boot): Schwachstelle erm\u00f6glicht Umgehen von Sicherheitsvorkehrungen",
"tracking": {
"current_release_date": "2026-09-09T22:00:00.000+00:00",
"generator": {
"date": "2026-09-10T12:46:33.731+00:00",
"engine": {
"name": "BSI-WID",
"version": "1.6.0"
}
},
"id": "WID-SEC-W-2026-3240",
"initial_release_date": "2026-09-08T22:00:00.000+00:00",
"revision_history": [
{
"date": "2026-09-08T22:00:00.000+00:00",
"number": "1",
"summary": "Initiale Fassung"
},
{
"date": "2026-09-09T22:00:00.000+00:00",
"number": "2",
"summary": "Neue Updates von Dell aufgenommen"
}
],
"status": "final",
"version": "2"
}
},
"product_tree": {
"branches": [
{
"branches": [
{
"branches": [
{
"category": "product_version",
"name": "UEFI Shell implementation",
"product": {
"name": "Cisco Unified Computing System (UCS) UEFI Shell implementation",
"product_id": "T059219",
"product_identification_helper": {
"cpe": "cpe:/h:cisco:unified_computing_system:uefi_shell_implementation"
}
}
}
],
"category": "product_name",
"name": "Unified Computing System (UCS)"
}
],
"category": "vendor",
"name": "Cisco"
},
{
"branches": [
{
"category": "product_name",
"name": "Dell Computer",
"product": {
"name": "Dell Computer",
"product_id": "T056167",
"product_identification_helper": {
"cpe": "cpe:/o:dell:dell_computer:-"
}
}
}
],
"category": "vendor",
"name": "Dell"
},
{
"branches": [
{
"branches": [
{
"category": "product_name",
"name": "Insyde UEFI Firmware",
"product": {
"name": "Insyde UEFI Firmware",
"product_id": "T059220",
"product_identification_helper": {
"cpe": "cpe:/h:insyde:uefi:-"
}
}
},
{
"category": "product_version_range",
"name": "\u003c05.2B.17",
"product": {
"name": "Insyde UEFI Firmware \u003c05.2B.17",
"product_id": "T059228"
}
},
{
"category": "product_version",
"name": "05.2B.17",
"product": {
"name": "Insyde UEFI Firmware 05.2B.17",
"product_id": "T059228-fixed",
"product_identification_helper": {
"cpe": "cpe:/h:insyde:uefi:05.2b.17"
}
}
},
{
"category": "product_version_range",
"name": "\u003c05.3A.17",
"product": {
"name": "Insyde UEFI Firmware \u003c05.3A.17",
"product_id": "T059229"
}
},
{
"category": "product_version",
"name": "05.3A.17",
"product": {
"name": "Insyde UEFI Firmware 05.3A.17",
"product_id": "T059229-fixed",
"product_identification_helper": {
"cpe": "cpe:/h:insyde:uefi:05.3a.17"
}
}
},
{
"category": "product_version_range",
"name": "\u003c05.48.17",
"product": {
"name": "Insyde UEFI Firmware \u003c05.48.17",
"product_id": "T059230"
}
},
{
"category": "product_version",
"name": "05.48.17",
"product": {
"name": "Insyde UEFI Firmware 05.48.17",
"product_id": "T059230-fixed",
"product_identification_helper": {
"cpe": "cpe:/h:insyde:uefi:05.48.17"
}
}
},
{
"category": "product_version_range",
"name": "\u003c05.56.17",
"product": {
"name": "Insyde UEFI Firmware \u003c05.56.17",
"product_id": "T059231"
}
},
{
"category": "product_version",
"name": "05.56.17",
"product": {
"name": "Insyde UEFI Firmware 05.56.17",
"product_id": "T059231-fixed",
"product_identification_helper": {
"cpe": "cpe:/h:insyde:uefi:05.56.17"
}
}
},
{
"category": "product_version_range",
"name": "\u003c05.63.17",
"product": {
"name": "Insyde UEFI Firmware \u003c05.63.17",
"product_id": "T059232"
}
},
{
"category": "product_version",
"name": "05.63.17",
"product": {
"name": "Insyde UEFI Firmware 05.63.17",
"product_id": "T059232-fixed",
"product_identification_helper": {
"cpe": "cpe:/h:insyde:uefi:05.63.17"
}
}
},
{
"category": "product_version_range",
"name": "\u003c05.72.17",
"product": {
"name": "Insyde UEFI Firmware \u003c05.72.17",
"product_id": "T059233"
}
},
{
"category": "product_version",
"name": "05.72.17",
"product": {
"name": "Insyde UEFI Firmware 05.72.17",
"product_id": "T059233-fixed",
"product_identification_helper": {
"cpe": "cpe:/h:insyde:uefi:05.72.17"
}
}
}
],
"category": "product_name",
"name": "UEFI Firmware"
}
],
"category": "vendor",
"name": "Insyde"
}
]
},
"vulnerabilities": [
{
"cve": "CVE-2026-20293",
"product_status": {
"known_affected": [
"T059229",
"T059228",
"T059219",
"T059230",
"T059232",
"T059220",
"T059231",
"T059233",
"T056167"
]
},
"release_date": "2026-09-08T22:00:00.000+00:00",
"title": "CVE-2026-20293"
},
{
"cve": "CVE-2026-6485",
"product_status": {
"known_affected": [
"T059229",
"T059228",
"T059219",
"T059230",
"T059232",
"T059220",
"T059231",
"T059233",
"T056167"
]
},
"release_date": "2026-09-08T22:00:00.000+00:00",
"title": "CVE-2026-6485"
}
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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